HUBImageLoaderDelegate

@protocol HUBImageLoaderDelegate <NSObject>

Delegate protocol for HUBImageLoader

You don’t conform to this protocol yourself. Instead, the Hub Framework will assign an internal object that conforms to this protocol as the delegate of any image loader. You use the methods defined in this protocol to communicate an image loader’s outcomes back to the framework.


                    
                    
                    -imageLoader:didLoadImage:forURL:

Notify the Hub Framework that an image loader finished loading an image

It’s safe to call this method from any thread, as the framework will automatically dispatch to the main queue in case it’s called from a background thread.

Declaration

Objective-C

- (void)imageLoader:(nonnull id<HUBImageLoader>)imageLoader
       didLoadImage:(nonnull UIImage *)image
             forURL:(nonnull NSURL *)imageURL;

Parameters

`imageLoader`	The image loader that finished loading
`image`	The image that was loaded
`imageURL`	The URL of the image that was loaded


                    
                    
                    -imageLoader:didFailLoadingImageForURL:error:

Notify the Hub Framework that an image loader failed to load an image because of an error

It’s safe to call this method from any thread, as the framework will automatically dispatch to the main queue in case it’s called from a background thread.

Declaration

Objective-C

- (void)imageLoader:(nonnull id<HUBImageLoader>)imageLoader
    didFailLoadingImageForURL:(nonnull NSURL *)imageURL
                        error:(nonnull NSError *)error;

Parameters

`imageLoader`	The image loader that failed loading
`imageURL`	The URL of the image that failed to load
`error`	The error that was encountered